Each engineered side kit posts is designed for strength and versatility to adapt to any load covering requirement. AK's engineered light weight & heavy duty side stakes provide versatility for all your Side Kit needs. AK invented side kits for flatbed trailers! They're the strongest, lightest side kits you can buy, with every component engineered especially for the job it's intended to do.

Redesigned Heavy Duty Square Post: This new design was based on the industry’s demand for a post that sits flat in the stake pocket. With aluminum flatbed trailers being most popular, aluminum extruded post requires more flat surface area to seat inside the stake pocket to reduce wear. We still kept the triple hollow engineered design to provide strengthen for side shifting of loads. Available in a 3” & 3-1/2” width the new post will accommodate all flatbed stake pocket sizes while adding versatility to be altered to most non-standard stake pocket sizes.